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Frquency of Environmental monitoring in Grade D

Dear all,

What is the frquency followed for Environmental monitoring (settle plate and air sampling techniques) in Grade D (Non-Sterile areas) ?. What is the practice in industry ?. Is there any regulatory requirement?

How important is monitoring of compressed air in pharmaceuticals and what is monitoring frequency ?

pls. advise…


according to regulations enviromental monitoring in a grade D area is done monthly.how it can depend on our in house specifications also.In our company we do it every week.

in a sterile industry monitoring of compressed air is very much important,as it is used during vial filling operation,its monitoring is done every for every 15 days.